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  2. Blue light spectrum - Wikipedia

    en.wikipedia.org/wiki/Blue_light_spectrum

    The blue light spectrum is an essential part of the visible spectrum with wavelengths of about 400-480 nm. [1] Blue light is primarily generated by Light-Emitting Diodes (LED) lighting and digital screens, it has now become prevalent in the world around us. [2] LED lighting creates white light by combining blue light with other wavelengths ...

  3. Blue Light (counter-terrorist subunit) - Wikipedia

    en.wikipedia.org/wiki/Blue_Light_(counter...

    Blue Light was an American counter-terrorist subunit of the 5th Special Forces Group that existed into the late 1970s. [1] According to Colonel Charles Beckwith 's memoirs, this counter-terrorist group was formed by U.S. Army Special Forces leadership to fill an important counter-terrorism gap until Delta Force became operational.

  4. List of flags with blue, red, and white stripes - Wikipedia

    en.wikipedia.org/wiki/List_of_flags_with_blue...

    The Flag of the Netherlands was likely the first tricolor with red, white, and blue bands, influencing many others. Flags of white, red and blue stripes (bands) are closely associated with independence and the French Revolution. It can often signal the relationships of some nations with other nations (for instance, the flag of the Netherlands ...

  5. Blue Reflection: Second Light - Wikipedia

    en.wikipedia.org/wiki/Blue_Reflection:_Second_Light

    Mode (s) Single-player. Blue Reflection: Second Light ( Blue Reflection: Tie ( BLUE REFLECTION ブルーリフレクション TIE/帝 タイ) is a 2021 is a role-playing video game developed by Gust and a sequel to both the 2017 game Blue Reflection and the anime Blue Reflection Ray. It was published by Koei Tecmo first in October 2021 in Japan ...

  6. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...

  7. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  8. Bluelight (web forum) - Wikipedia

    en.wikipedia.org/wiki/Bluelight_(web_forum)

    Bluelight is a web-forum, research portal, online community, and non-profit organization dedicated to harm reduction in drug use. [1] [2] Its userbase includes current and former substance users, academic researchers, drug policy activists, and mental health advocates. [2] [3] [4] It is believed to be the largest online international drug ...

  9. A 'Bridgerton' Actor Implied He's Leaving the Show in a Super ...

    www.aol.com/bridgerton-actor-implied-hes-leaving...

    Before you fully spiral, nothing's been confirmed quite yet. But Lorn Macdonald, who plays Albion Finch (aka Philippa Featherington's green flag husband) hopped onto Instagram with a mysterious ...

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